Veteran broadcaster Johnnie Walker has announced he will be giving his final broadcast later this month. He announced the “sad announcement” in an emotional statement on Sunday, where he explained he’d be stepping down from hosting duties for his Radio 2 and BBC Sounds shows, Sounds of the 70s and The Rock Show. During his Sounds of the 70s show on Sunday, he confirmed the era-ending news. It came after he read a letter from a loyal fan who shared how their late father had loved listening to the presenter before he died of pulmonary fibrosis in 2022. The touching message prompted Walker, who s…